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Proceedings Paper

Novel temperature-insensitive clinometer using fiber Bragg gratings
Author(s): Xinyong Dong; Chunlei Zhan; Kun Hu; P. Shum; Na Ni; Jian Sun; C. C. Chan
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Paper Abstract

We report a novel clinometer (or tilt sensor) by using three fiber Bragg gratings (FBGs). It can detect the magnitude as well as the direction of the inclination from the horizontal direction by directly measuring the reflected optical powers of the FBGs, whose bandwidths vary with the inclination. The experimental results show that it is inherently insensitive to temperature, eliminating the need for compensation of temperature, and a tilt angle measurement accuracy of ±0.13° and resolution of 0.02° have been achieved.

Paper Details

Date Published: 5 November 2005
PDF: 5 pages
Proc. SPIE 5998, Sensors for Harsh Environments II, 59980S (5 November 2005); doi: 10.1117/12.630255
Show Author Affiliations
Xinyong Dong, Nanyang Technological Univ. (Singapore)
Chunlei Zhan, Nanyang Technological Univ. (Singapore)
Kun Hu, Nanyang Technological Univ. (Singapore)
P. Shum, Nanyang Technological Univ. (Singapore)
Na Ni, Nanyang Technological Univ. (Singapore)
Jian Sun, Nanyang Technological Univ. (Singapore)
C. C. Chan, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 5998:
Sensors for Harsh Environments II
Anbo Wang, Editor(s)

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